Fractal Model for Acoustic Absorbing of Porous Fibrous Metal Materials

Table 4

The calculated and measured static flow resistivities of different tortuosity fractal dimensions.

Number		Sample #1			Sample #2			Sample #3
		Static flow resistivity; σ (Nm^−4s)	Measured; value; σ (Nm^−4s)	Deviation; (%)	Static flow; resistivity; σ (Nm^−4s)	Measured value; σ (Nm^−4s)	Deviation; (%)	Static flow; resistivity; σ (Nm^−4s)	Measured value; σ (Nm^−4s)	Deviation; (%)
#1	1.02	83737	98756	15.21	31233	34655	9.87	16677	19748	15.55
#2	1.05	93381		5.44	34684		0.08	18366		7.00
#3	1.07	100410		1.67	37190		7.31	19584		8.30
#4	1.08	104120		5.43	38510		11.12	20223		2.41
#5	1.10	111960		13.37	41289		19.14	21564		9.20
Mean value	1.06	96834		1.95	35915		3.63	18965		3.96